'''Elliot Aronson''' (born January 9, 1932) is an American Psychology|psychologist
. He is listed among the 100 most eminent psychologists of the 20th Century and is best known for the invention of the Jigsaw Classroom
as a method of reducing interethnic hostility and prejudice. He is also known for his research on cognitive dissonance
and his influential social psychology
In his (1972) text, ''The Social Animal,'' (now in its 11th edition), he stated Aronson's First Law: "People who do crazy things are not necessarily crazy," thus asserting the importance of situational factors in bizarre behavior. He is the only person in the 120-year history of the American Psychological Association
to have won all three of its major awards: for writing, for teaching, and for research.
In 2007 he received the William James Award for Lifetime Achievement from the Association for Psychological...